Ventilation grille



FIG. 1 is a bottom perspective view of the ventilation grille of the instant invention;

FIG. 2 is a bottom view of the grille of FIG. 1;

FIG. 3 is a top view of the grille of FIG. 1;

FIG. 4 is a left side view of the grille of FIG. 1;

FIG. 5 is a right side view of the grille of FIG. 1;

FIG. 6 is a front side view of the grille of FIG. 1; and,

FIG. 7 is a rear side view of the grille of FIG. 1.

The broken lines illustrate portions of the ventilation grille that form no part of the claimed design. 

CLAIM The ornamental design for a ventilation grill, as shown and described. 